What is Nostr?

Public Key
npub1tyylrp80qwgr4tacnnkvzmuypyghd7p56apdxx8jkn4yxzxj3exqv4p8dy
NIP-05 Address
danjan@iris.to
NIP-57 Address
danjan@walletofsatoshi.com
Profile Code
nprofile1qqs9jz03snhs8yp647ufemxpd7zqjytklq6dwsknrretf6jrprfgunqqsmgvg
Author Public Key
npub1tyylrp80qwgr4tacnnkvzmuypyghd7p56apdxx8jkn4yxzxj3exqv4p8dy